{"station":{"icao":"KBOS","city":{"slug":"boston","name":"Boston","country":"United States"},"timezone":"America/New_York","lat":42.36,"lon":-71.06,"us":true,"html":"https://weathermarket.io/station/KBOS","json":"https://weathermarket.io/api/station/KBOS","nwsCli":{"html":"https://weathermarket.io/nws-cli/KBOS","json":"https://weathermarket.io/api/nws-cli/KBOS"}},"date":"2026-10-17","window":{"date":"2026-10-17","timezone":"America/New_York","dayStartUtc":"2026-10-17T04:00:00.000Z","dayEndUtc":"2026-10-18T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":16.7,"tmaxAt":"2026-10-17T04:54:00.000Z","tmin":4.4,"tminAt":"2026-10-18T03:54:00.000Z","tavg":9.4,"humidityMean":52.1,"windMean":6.5,"windMax":9.3,"windMaxAt":"2026-10-17T17:54:00.000Z","precipObservedCount":0,"nObservations":24,"maxGapMinutes":60,"units":{"temperature":"°C","wind":"m/s","humidity":"%"},"source":"Extremes over the METAR observations listed in this record (hourly plus special reports) - the same record values.metarDerived carries in /api/station/{icao}/daily"},"extremes":{"tmax":{"obsTimeUtc":"2026-10-17T04:54:00.000Z","obsTimeLocal":"2026-10-17T00:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 170454Z 28012G22KT 10SM FEW050 OVC110 17/11 A2972 RMK AO2 PK WND 28026/0442 RAB39E49 SLP063 P0000 T01670106 402060106","temp":16.7,"dewpoint":10.6,"humidity":67,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-18T03:54:00.000Z","obsTimeLocal":"2026-10-17T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 180354Z 33005KT 10SM CLR 04/M05 A3040 RMK AO2 SLP293 T00441050","temp":4.4,"dewpoint":-5,"humidity":50,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-17T17:54:00.000Z","obsTimeLocal":"2026-10-17T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171754Z 33018G25KT 10SM FEW030 SCT047 SCT120 BKN170 09/M03 A3014 RMK AO2 PK WND 33028/1734 SLP206 T00941028 10106 20083 53014","temp":9.4,"dewpoint":-2.8,"humidity":42,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-18T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"70d9e932fe91d792","lastChangedAt":"2026-10-18T03:58:41.100Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KBOS/2026-10-17?format=record","status":"anchored","sha256":"d3ac37be94ef73364e07b58f955fa9b05e42238f04d0e92ad617e75daa890218","revision":"70d9e932fe91d792","flareTxHash":"0x4994c9bddc45bb7d4d460bff066bca5077a5fc31a8585d2dca6b572c8eb6ddbd","flareBlock":72385642,"anchoredAt":"2026-10-18T07:01:54.780Z","explorer":"https://flare-explorer.flare.network/tx/0x4994c9bddc45bb7d4d460bff066bca5077a5fc31a8585d2dca6b572c8eb6ddbd","matchesCurrent":true,"note":"GET the record bytes, SHA-256 them, and call SnapshotAnchor.isAnchored(sha256) on Flare - the anchored record is the one to settle on"},"qc":{"summary":{"good":24,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-17T04:54:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-18T03:54:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":16.7,"tmin":4.4,"differsFromRecord":false},"note":"Flags are attached beside the anchored record and are not part of its bytes; the record's extremes are unchanged. A suspect extreme is usable but worth checking against the raw text (extremes.*.reasons); a bad report is physically impossible and excludingBad shows the extremes without it."},"official":{"status":"issued","tmax":16.67,"tmin":3.33,"precip":0,"corrected":false,"issuedAt":"2026-10-18T05:41:00.000Z","html":"https://weathermarket.io/nws-cli/KBOS/2026-10-17","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-10-17"},"observations":[{"obsTimeUtc":"2026-10-17T04:54:00.000Z","obsTimeLocal":"2026-10-17T00:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 170454Z 28012G22KT 10SM FEW050 OVC110 17/11 A2972 RMK AO2 PK WND 28026/0442 RAB39E49 SLP063 P0000 T01670106 402060106","temp":16.7,"dewpoint":10.6,"humidity":67,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T05:54:00.000Z","obsTimeLocal":"2026-10-17T01:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 170554Z 28015KT 10SM BKN060 BKN110 16/09 A2975 RMK AO2 RAB03E41 PRESRR SLP075 P0000 60011 T01560094 10194 20156 53027","temp":15.6,"dewpoint":9.4,"humidity":67,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T06:54:00.000Z","obsTimeLocal":"2026-10-17T02:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 170654Z 34013G19KT 10SM SCT028 BKN034 OVC110 14/09 A2981 RMK AO2 PRESRR SLP095 T01390089","temp":13.9,"dewpoint":8.9,"humidity":72,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T07:54:00.000Z","obsTimeLocal":"2026-10-17T03:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 170754Z 33013G22KT 10SM FEW033 SCT110 12/06 A2984 RMK AO2 SLP103 T01220056","temp":12.2,"dewpoint":5.6,"humidity":64,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T08:54:00.000Z","obsTimeLocal":"2026-10-17T04:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 170854Z 33017G25KT 10SM FEW033 OVC110 11/04 A2990 RMK AO2 PK WND 32026/0836 SLP126 T01110039 53051","temp":11.1,"dewpoint":3.9,"humidity":61,"wind":8.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T09:54:00.000Z","obsTimeLocal":"2026-10-17T05:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 170954Z 33014G21KT 10SM FEW033 OVC080 11/03 A2993 RMK AO2 RAB25E41 SLP136 P0000 T01060028","temp":10.6,"dewpoint":2.8,"humidity":59,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T10:54:00.000Z","obsTimeLocal":"2026-10-17T06:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171054Z 33014G24KT 10SM FEW033 SCT100 OVC120 09/02 A2997 RMK AO2 PK WND 32031/1021 SLP147 T00940017","temp":9.4,"dewpoint":1.7,"humidity":59,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T11:54:00.000Z","obsTimeLocal":"2026-10-17T07:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171154Z 32011G19KT 10SM FEW033 OVC120 09/02 A3001 RMK AO2 SLP162 60000 70044 T00940017 10156 20094 53036","temp":9.4,"dewpoint":1.7,"humidity":59,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T12:54:00.000Z","obsTimeLocal":"2026-10-17T08:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171254Z 33015G26KT 10SM FEW033 BKN120 09/01 A3005 RMK AO2 PK WND 34027/1244 SLP175 T00890006","temp":8.9,"dewpoint":0.6,"humidity":56,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T13:54:00.000Z","obsTimeLocal":"2026-10-17T09:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171354Z 33011G20KT 10SM FEW033 BKN120 09/01 A3008 RMK AO2 PK WND 33027/1328 SLP185 T00890006","temp":8.9,"dewpoint":0.6,"humidity":56,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T14:54:00.000Z","obsTimeLocal":"2026-10-17T10:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171454Z 33016G23KT 10SM FEW033 BKN120 09/00 A3010 RMK AO2 SLP191 T00890000 51029","temp":8.9,"dewpoint":0,"humidity":54,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T15:54:00.000Z","obsTimeLocal":"2026-10-17T11:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171554Z 32013G20KT 10SM FEW033 BKN120 09/01 A3009 RMK AO2 SLP190 T00890006","temp":8.9,"dewpoint":0.6,"humidity":56,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T16:54:00.000Z","obsTimeLocal":"2026-10-17T12:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171654Z 33013G28KT 10SM FEW033 BKN120 10/00 A3012 RMK AO2 PK WND 33028/1646 SLP198 T01000000","temp":10,"dewpoint":0,"humidity":50,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T17:54:00.000Z","obsTimeLocal":"2026-10-17T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171754Z 33018G25KT 10SM FEW030 SCT047 SCT120 BKN170 09/M03 A3014 RMK AO2 PK WND 33028/1734 SLP206 T00941028 10106 20083 53014","temp":9.4,"dewpoint":-2.8,"humidity":42,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T18:54:00.000Z","obsTimeLocal":"2026-10-17T14:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171854Z 31016G24KT 10SM FEW030 FEW045 SCT120 BKN180 09/M02 A3018 RMK AO2 PK WND 34028/1800 SLP217 T00941022","temp":9.4,"dewpoint":-2.2,"humidity":44,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T19:54:00.000Z","obsTimeLocal":"2026-10-17T15:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 171954Z 34013G24KT 10SM FEW035 SCT140 BKN190 09/M02 A3019 RMK AO2 SLP223 T00891022","temp":8.9,"dewpoint":-2.2,"humidity":46,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T20:54:00.000Z","obsTimeLocal":"2026-10-17T16:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 172054Z 32013G20KT 10SM FEW040 SCT150 SCT190 BKN250 09/M05 A3022 RMK AO2 PK WND 34026/2007 SLP233 T00891050 51028","temp":8.9,"dewpoint":-5,"humidity":37,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T21:54:00.000Z","obsTimeLocal":"2026-10-17T17:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 172154Z 32012G20KT 10SM FEW160 BKN250 09/M06 A3024 RMK AO2 SLP240 T00891056","temp":8.9,"dewpoint":-5.6,"humidity":35,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T22:54:00.000Z","obsTimeLocal":"2026-10-17T18:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 172254Z 34011KT 10SM FEW120 FEW160 SCT250 08/M05 A3028 RMK AO2 SLP251 T00781050","temp":7.8,"dewpoint":-5,"humidity":40,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T23:54:00.000Z","obsTimeLocal":"2026-10-17T19:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 172354Z 33010G19KT 10SM FEW160 SCT250 07/M04 A3031 RMK AO2 SLP262 T00671044 10100 20067 53029","temp":6.7,"dewpoint":-4.4,"humidity":45,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-18T00:54:00.000Z","obsTimeLocal":"2026-10-17T20:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 180054Z 33013G18KT 10SM FEW250 06/M06 A3033 RMK AO2 SLP269 T00611056","temp":6.1,"dewpoint":-5.6,"humidity":43,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-18T01:54:00.000Z","obsTimeLocal":"2026-10-17T21:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 180154Z 33010KT 10SM FEW250 06/M06 A3036 RMK AO2 SLP280 T00561061","temp":5.6,"dewpoint":-6.1,"humidity":43,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-18T02:54:00.000Z","obsTimeLocal":"2026-10-17T22:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 180254Z 33007KT 10SM CLR 05/M06 A3038 RMK AO2 SLP286 T00501061 51024","temp":5,"dewpoint":-6.1,"humidity":45,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-18T03:54:00.000Z","obsTimeLocal":"2026-10-17T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 180354Z 33005KT 10SM CLR 04/M05 A3040 RMK AO2 SLP293 T00441050","temp":4.4,"dewpoint":-5,"humidity":50,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null}],"about":{"record":"Station-day record: the daily extremes over every METAR observation (hourly plus special reports) received for the station's local calendar day - local midnight to local midnight, daylight saving applied. Temperatures are whole degrees Celsius as reported in METAR; a short-lived peak between reports can be missed. This is not a model or an aggregate - every value points at the report that produced it, and every report in the day is listed verbatim.","settlementRule":"The settlement value is the daily maximum (or minimum) of this record once it is final: the local day has ended and the 3-hour correction hold has passed. A day whose longest gap between reports exceeds the station's normal interval plus 30 minutes is final but flagged not settleable - a market should treat it as a review case. Once final, the canonical record bytes are hashed (SHA-256) and the hash is written to the SnapshotAnchor contract on Flare; the anchored record is the settlement record even if reports change afterwards (matchesCurrent then reads false). US markets usually settle on the official NWS CLI value instead - see the NWS CLI archive for this station; both values are shown side by side.","verify":["Every METAR in the day is listed with its raw text; compare it with the independent archives linked under links.external (IEM ASOS archive, Ogimet).","GET links.record for the canonical record bytes, SHA-256 them and compare with anchor.sha256; call SnapshotAnchor.isAnchored(sha256) on Flare (anchor.contract, anchor.chainId) to confirm the hash is on-chain. anchor.explorer opens the anchoring transaction.","Permalink pattern for market rules: https://weathermarket.io/station/KBOS/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/KBOS/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for KBOS for the contract date (station-local calendar day), as published at https://weathermarket.io/station/KBOS/YYYY-MM-DD with every observation used, the finality status and the Flare anchor of the record. The daily value is the extreme over the hourly and special METAR reports in that day; a short-lived peak between reports may be missed. If the record is not final and settleable by the resolution deadline, the market is flagged for review."},"links":{"html":"https://weathermarket.io/station/KBOS/2026-10-17","json":"https://weathermarket.io/api/station/KBOS/2026-10-17","record":"https://weathermarket.io/api/station/KBOS/2026-10-17?format=record","prev":"https://weathermarket.io/station/KBOS/2026-10-16","next":"https://weathermarket.io/station/KBOS/2026-10-18","station":"https://weathermarket.io/station/KBOS","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=BOS&data=metar&year1=2026&month1=10&day1=17&year2=2026&month2=10&day2=19&tz=Etc%2FUTC&format=onlycomma&latlon=no&elev=no&missing=M&trace=T&direct=no&report_type=3&report_type=4","ogimet":"https://www.ogimet.com/display_metars2.php?lang=en&lugar=KBOS&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=10&day=17&hora=4&anof=2026&mesf=10&dayf=18&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KBOS"}}}